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Old 08-25-2016, 01:50 AM   #13
E.D.75GMC
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Join Date: Aug 2013
Location: Calgary Alberta
Posts: 273
Re: Truck running poorly under load, need help.

Finally had a dry day, so I replaced the old original fuel line that goes to the pump. Still having the issue but I'm gonna check out the trans modulator on Friday. The insulator is a good idea, even though I've driven the truck in +30 degree Celsius weather many times over the years and never had an issue I may pick one up for good measure.
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